使用QTreeView在行中进行错误的文本对齐

Question

我有QTreeView（PyQt4）使用下面的代码自定义和调整大小的图标，但大小列显示错误的对齐/位置，如此：

        self.ui.treeView.setIconSize(QtCore.QSize(30,30))

        fileSystemModel = QtGui.QFileSystemModel(self.ui.treeView)
        custonIconProvider = CustomIconsProvider()
        fileSystemModel.setIconProvider(custonIconProvider)

        self.ui.treeView.setModel(fileSystemModel)
        self.ui.treeView.setRootIndex(fileSystemModel.setRootPath(forlderPath))

        self.ui.treeView.setColumnWidth(0, 250)
        self.ui.treeView.setColumnWidth(1, 70)
        self.ui.treeView.setColumnWidth(2, 70)

我在http://pyqt.sourceforge.net/Docs/PyQt4/qtreeview.html文档中搜索了可能的修复方法，但找不到任何明显的内容。

Answer 1

解决此问题的一种方法是重新实现模型的data() method，以便TextAlignmentRole的值始终包含AlignVCenter标志：

# python3 or sip.setapi('QVariant', 2)

class FileSystemModel(QtGui.QFileSystemModel):
    def data(self, index, role):
        value = super(FileSystemModel, self).data(index, role)
        if role == QtCore.Qt.TextAlignmentRole and value is not None:
            value |= QtCore.Qt.AlignVCenter
        return value

# python2 or sip.setapi('QVariant', 1)

class FileSystemModel(QtGui.QFileSystemModel):
    def data(self, index, role):
        value = super(FileSystemModel, self).data(index, role)
        if role == QtCore.Qt.TextAlignmentRole and value.isValid():
            value = value.toInt()[0] | QtCore.Qt.AlignVCenter
        return value

Answer 2

view - ＆gt;模型 - ＆gt; setData（索引，YOUR_VALUE，Qt :: TextAlignmentRole）